Fariba is from the Persian farība (فریبا — enchanting, captivating, beautiful). Fariba Naderi — Iranian-American academic. Fariba Hashtroodi — Iranian-American figure. Princess Fariba — Persian heritage naming.
Fariba does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Fariba reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.